Home / 19,209.12-26,520.69-14,724.42

Finding the Fourth Proportional to 19,209.12, 26,520.69 and 14,724.42

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Solution

The fourth proportional to 19,209.12, 26,520.69 and 14,724.42 is: 20,328.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.12 : 26,520.69 = 14,724.42 : x
  2. Step 2: Convert to fraction form
    19,209.12/26,520.69 = 14,724.42/x
  3. Step 3: Cross multiply
    19,209.12x = 26,520.69 × 14,724.42
  4. Step 4: Simplify right side
    19,209.12x = 390,501,778.25
  5. Step 5: Solve for x
    x = 390,501,778.25/19,209.12
  6. Step 6: Final answer
    x = 20,328.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.